Just frustrating search for the missing Malaysia airlines jet it's been nearly a month since it disappears with 239. People aboard passengers and crew. ABC's -- Batiste has the latest. Malaysian prime minister -- is is now -- Perth with Australian prime minister Tony Abbott. Both leaders met with and thanked sailors and air crew before the search team set off this -- look for any signs of flight 370. In an area the size of Arizona. Today's visit is the Malaysian prime minister's first appears air base in Australia the hub for this mission. In a press conference today prime minister Tony Abbott said this search is like putting a six altogether. This is probably. The -- difficult search. -- up under tight end. He gave his condolences to -- members and a plea for them to be patient. We will not race. Until we have done everything we humanly can't. Today eight planes and nine ships are looking for any new debris. A British nuclear submarine now joined by a survey vessel arrived in the search area yesterday looking specifically for the plane's two black boxes. It will joint US navy team on board the ocean shield which has a black box locate -- and underwater drowned in the search for clues little has emerged. The FBI told ABC news that the final review of the pilots -- simulator confirmed no evidence indicating a plan to divert the plane from its original route. The clock is ticking and the batteries on those black boxes could run out in five days. At this point authorities are saying that we may never know what happened and it's more than 39 people on board may never be found. -- -- ABC news Perth Australia.

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